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C25 Boot issue


Can anyone provide any support to fix the below issue in C25 controller.

VFS: Cannot open root device "sda1" or unknown-block(0,0)Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

it is not giving me option to selection "Controller Rescue"

1 reply

Userlevel 5
Hello Sachu,

If you reboot the controller with a serial console connection, do you see the Controller and Controller Rescue ? This article has steps to take once at that menu.


If you cannot get to that menu, I would suggest giving a call to GTAC and opening a case to look further into this.